Simer, ...to my knowledge, you don't have to do exactly what the ISP says to do in regards to your IP Addressing schema.... they'll never know the difference! (Now watch someone disprove my limited experience :) )
You can mimic the same configuration as far as your IP addressing goes with the new ISP, or you could use the second Ethernet port as your private net, and do a IP Unnumbered Ethernet0 on the Serial interface connected to the ISP and put the public IP address on the Ethernet0. One question- Are they also assigning you a small block of addresses for you to use at your leisure?!?! I.E., They assign you 162.16.34.94/30 for the P-t-P ISP Connection, and X.X.X.X/27 for your own use in assigning hosts to be reachable from the net via static NAT or static assignment of the public address on the host itself?? If this were the case, you would assign the ISP P-t-P IP address/30 to the Serial, public-assigned block to the Ethernet0 and your Private address block to Ethernet1. HTHs, Mark -----Original Message----- From: [EMAIL PROTECTED] [mailto:[EMAIL PROTECTED]]On Behalf Of Mayo, Simer Sent: Friday, April 19, 2002 11:19 AM To: [EMAIL PROTECTED] Subject: PPP on 2514 [7:41973] I'm trying to configure PPP on a 2514 router. The ISP wants me to use a public IP address on both e0 and s0. The previous ISP had frame-relay and I was using private IP addresses for e0 and NAT overloading. I want to configure extended NAT on the router but not sure how i can do this if i'm using public IP addresses for both e0 and s0. The internal network is on private IP addresses and configuring a firewall behind the router is not in the budget. New config: (From the ISP) interface Serial0 ip address 162.16.34.94 255.255.255.252 encap hdlc <---default interface FastEthernet0 ip address 164.65.13.89 255.255.255.252 ip route 0.0.0.0 0.0.0.0 162.16.34.93 Old config: (with the previous ISP) interface s0 ip address 167.129.130.198 255.255.255.252 encap frame-relay ietf ip nat outside interface e0 ip address 192.168.1.1 255.255.255.0 ip nat inside ip nat pool Mypool 167.129.130.198 167.129.130.198 netmask 255.255.255.252 ip nat inside source list 100 pool MyPool overload access-list 100 permit .... Thanks for your help. Simer Message Posted at: http://www.groupstudy.com/form/read.php?f=7&i=41982&t=41973 -------------------------------------------------- FAQ, list archives, and subscription info: http://www.groupstudy.com/list/cisco.html Report misconduct and Nondisclosure violations to [EMAIL PROTECTED]